HD 159868

HD 159868 is a G7V-type star located approximately 172 light-years away in the constellation Scorpius. It is slightly cooler and less massive than our Sun. The star is also older than the Sun, estimated to be around 7 billion years old.

HD 159868 is known to host one confirmed extrasolar planet, designated HD 159868 b. This planet is a gas giant, with a mass estimated to be roughly twice that of Jupiter. It orbits the star at a distance of approximately 1.4 astronomical units (AU) with a period of around 444 Earth days.

The discovery of HD 159868 b was made using the radial velocity method, also known as the Doppler spectroscopy method. This method detects subtle variations in the star's radial velocity caused by the gravitational pull of the orbiting planet.

Further research is ongoing to characterize the HD 159868 system and potentially discover additional planets. Studying such systems provides valuable insights into the formation and evolution of planetary systems beyond our own Solar System.